Crude oil engine



Aug. 9, 1938. A BAUD 2,126,442

' CRUDE OIL ENGINE Filed Feb, 5, 1956 u F2 .4. `|Y 7 ALBERT F". BAU@ ATTORNEY Patented Aug; 9, 1938 escasez CRUDE UIL ENGINE Albert Baud, Paris, France Application February 5, i936, Serial No. 62,517 In France February 13. 1935 1 maine.

The presentinvention refers to internal comthe connection betweensaid ber and the' bustion engines, especially those using crude oils as the combustible therein.

oil engine of the present device dimers from that v of the Diesel type in that in the Diesel type engine a mixture of air.. and a combustible under a strong compression creates the explosive force, whereas, .in the present device the mixture of al1 and a lcombustible is under a low bressureand no the air is admitted to the chamber oi combustion in a constant voluine. in the operation of the motor with low compression, the oil is injected under -pressureinto the chamber of combustion ci the motor and mixed with air and directed towards cheating element maintained constantly in condition to ignite the combustible mixture.

The principal object of the 'present device is' to provide means for treating the combustible mixture of air and a combustible in two phases, 2li the iirst phase is that in which the combustible mixture is 'broken up und placed in c. violent turbulence and the second phase is that in which the combustible is placed under va retarded circulation in the interior of a tube containing the ignitionmeans after first receiving a .mixing or the air and combustible.

A further object of the `present invention is the provision of means for creating o, retarded continuous circulation oi the combustible mixy 3o ture immediately around the ignitine means arielheating means.

A iurther object oi the present invention is 'to provide means whereby the combustible mixjture is ignited by an ignition means maintained ,35 constantly in condition to ignite the combustible -minture at a time when said mixture is comnletely formed and the cylinder compressing the same is at the top oi' its compression stroke.

And a still further object oi the present inven- .40 tion is the .provision oi' a heatingmeans lor starting a crude oil low compression engine in combination with ieniting means ior the contlnu' ber with the hollow device and the means 'i'or ignition.

Fig. 1 is a sectional view or thecompression 55 chamber` adapted for spark ignition, also showing 'The typo of crudev engine cylinder. l

Fig. 2 shows the method for sparkignition, with a heating device. which is used for starting purposes.

5 Fig, 3 shows the means employed for ignition by incandescent filament. l

Fig. 4 relates -to the sell-ignition device, with the usevoi a heating lament employed ior the starting.

Referring to Fig. 1, 'l is the upper part of the lengine cylinder, 2 the piston in the latter, 3 the compression chamber, 4 the inlector ior the liquid fuel, 5 the hollow body which is provided with two orifices t' and l; t is the ignition electrede which is insulated'by means of an insulating sleeve l.

' in this device, the source ci current is con- Knecteci on the one henri to ground and on the other hand to the electrode b. Tl'lis form oi construction does not comprise a heating device.`

To start the engine, the operetion begins by running' it upon gasoline. rl'he hollow body t becomes heated. lits mass and its position are calculated in such manner that it will always` maintain a sumcient temperature to heat the cir which is ellecl by the piston l and which proceeds, through the communicatingl oriiice lll into the compression chamber ii, into which liquid fuel has been injected by means oi the in- :lector il. This heating is such that it provides ior ready ignition ci the ens mixture by means of the electric spari: which is icrmed between the pointed end ci? the electrode t and the wall oi the hollow body il. When thesaid hollow body becomes sumciently heated, the supply oi' gasoline is cut 0H, and the engine continues to run upon crucieoil,` i

lt is to be more particularly remar-hed that by reason oi a scavenging oi the oriice t of the hollow body by a stream ci cas which is shown in the 4dotted lines and 'which enters the compression chamber 'through the orifice it, a slight vacuum. is produced in the hollow body and a ras circulation is set up therein by the orifices l and It, which :iaciiitates the heating of the l'nel cas by the heat stored un in the hollow b dy, and its ready ignition, as well as tbe'cooling-ot the electrode t. l x

Fig. y2 shows a device which is similar to the' one shown in Fig.l, but in this case the electrode il is surrounded by a heating winding il.

In this device, in order to start the. engine, the current is sent into the Yiilament Il, which beats the fuel mixture, and the enginecan .tion of the fuel gas by means of a filament I2 which also serves to heat the gas mixture and to ignite the same. Otherwise, the operation is the same as in the preceding case.

Fig. 4 shows a form of construction of the selfignition device which comprises a heating lament for starting purposes.

For this purpose, the hollow body 5 contains a small metallic rod I3, for instance, which is riveted to the wall of the said body. 'I'he said rod is mounted in hollow body in the same manner as in the device shown in Fig. 2.

In order to start the engine which is provided with this device, the operator begins by sending the current into the filament H, and he then starts the engine. After it has been running for a certain time, and when the compression chamber is suiiciently heated, the member I3 will heat up to a greater degree than the hollow body, since it is protected from the circulation of fresh gas, and it thus constitutes the point at which the fuel gas can be ignited, At this time, the circuit of the filament Il can be broken, and the member I3 provides for the ignition of the fuel gas.

As above stated, since the fuel gas is already heated by its contact with the hollow body, it will be ignited when in contact with the member I3, at a much lower pressure than in the known internal combustion engines, and this pressure may be practically the same as in the usual gaso line engines.

In this manner, the new device permits, as above stated, to reduce-the weight of the engine and to set it running, from the start, with crude oil, without the aid of electric ignition, when once the engine has been started (Fig. 4). This affords a considerable economy, as to expense for fuel and for the construction of the engine. On the other hand, the ignition devices 'for the engine, for instance the devices shown in Fig. 4, are of a strong construction, and will operate for a long time.

Again, the said hollow body which is mounted according to the invention in the compression chamber of the engine, is adapted, by reason of the circulation of gas within the said body, to cool the ignition devices which are' situated in -the interior of the latter; if such devices are a certain quantity of heat after each cycle, will heat the fuel gas, and thus it can be more readily' ignited, especially when starting.

What I claim is:

An improvement in internal combustion engines comprising an engine cylinder, a globular ignition chamber mounted above said engine cylinder, a restricted passage formed at the base of said ignition chamber and connecting said engine cylinder with said ignition chamber, said ignition chamber having a concave inner top wall surface opposite said passage, va fuel injection device mounted so as to eject the fuel across said restricted channel, ignition means mounted transversely to said restricted channel and exu tending from a side wall of said globular-ignition chamber, a tube surrounding said ignition means and extending from said side wall of said globular ignition chamber, said tube having an opening formed in the top portion thereof near said side wall of said globular ignition chamber for the entrance of combustibles moving from the uppermost portion of said ignition chamber downwardly along said side wall of said ignition chamber, and the outer end of said tube being formed open and projecting into the path of the combustible flowing through said passage for drawing by suction the combustible from' said tube during a period of compression as the compressed combustible is being forced from the engine cylinder upwardly past the outer end of said tube.

ALBERT FRANCOIS BAUD. 

